PhD Thesis - staffweb - University of Greenwich

APPENDIX 1 : SMARTFIRE VERIFICATION AND VALIDATION REPORT2 General Physics Validation Cases2.1 Basic physics verification of SMARTFIRE — Convective term.This test examines whether the convective term in SMARTFIRE is functioning correctly.The tests involve a simple 2D fluid flow in a box. The fluid uniformly enters the box froman inlet and leaves via an outlet located opposite to the inlet (see Figure 1). The fluidtemperature is uniform. The test was repeated in the three co-ordinate directions (x, y, z) inthe positive and negative directions. This leads to six test cases which should all produceidentical results. All these tests are further repeated with heat transfer and also with heattransfer and buoyancy. Due to the use of the symmetry planes, the flow leaving thegeometry should exit uniformly with the same velocity with which it entered and possessthe same velocity throughout the domain.Figure 1 - Geometry for 2D flow case2.1.1 SMARTFIRE resultsa) flow only, no heat transfer and buoyancymaximum velocity : 1.0 m/s, minimum velocity: 1.0 m/s. ✓b) flow and heat transfer but no buoyancymaximum velocity : 1.0 m/s, minimum velocity: 1.0 m/s. ✓c) flow, heat transfer and buoyancymaximum velocity : 1.0 m/s, minimum velocity: 1.0 m/s. ✓Appendix 11.1 Page 141-4 4